Brown shark vs Common Fieldcap

Carcharhinus plumbeus compared with Agrocybe pediades

Key Differences

• Brown shark is Endangered while Common Fieldcap is Least Concern.

Taxonomic Classification

Rank	Brown shark	Common Fieldcap
Kingdom	Animalia (животные)	Fungi (грибы)
Phylum	Chordata (хордовые)	Basidiomycota (базидиомицеты)
Class	Chondrichthyes (хрящевые рыбы)	Agaricomycetes (агарикомицеты)
Order	Carcharhiniformes (кархаринообразные)	Agaricales (агариковые)
Family	Carcharhinidae	Strophariaceae
Genus	Carcharhinus	Agrocybe
Species	Carcharhinus plumbeus	Agrocybe pediades

Conservation Status

Brown shark

EN — Endangered

Common Fieldcap

LC — Least Concern

Physical Characteristics

Attribute	Brown shark	Common Fieldcap
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown shark

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Distributed across Taiwan and Venezuela. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Fieldcap

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Found across Europe (5 countries) and North America (United States).

Brown shark

The Brown Shark (Carcharhinus plumbeus) is a species in the genus Carcharhinus. It is currently classified as Endangered on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

Common Fieldcap

The Common Fieldcap (<em>Agrocybe pediades</em>) is a saprotrophic fungus belonging to the genus Agrocybe within the family Strophariaceae. It typically produces small, tan to pale brown cap-shaped fruiting bodies and is often found growing in clusters or scattered on lawns, grassy areas, forest floors, decomposing wood, and soil-rich ecosystems. The species typically inhabits forest floors, decomposing wood, and soil ecosystems, obtaining nutrients by breaking down dead organic matter. Its geographic range includes several European countries — Belgium, Denmark, Norway, Portugal, and Sweden — as well as the United States in North America. <em>Agrocybe pediades</em> is assessed as Least Concern on the IUCN Red List, reflecting its broad distribution and apparent stability. Biological traits of this species, including specific data on fruiting body size, lifespan, and ecological preferences, remain poorly documented in the scientific literature. Like other members of its genus, it typically fruits during warmer months and often appears after rainfall in nutrient-rich grassland and woodland habitats.